Machine for treating paper-stock.



Patented Nov. 4, I902. J. A. MULLEN 8:. E. J. POPE.

MACHINE FOR TREATING PAPER ST OCK Application filed Jan m, 1902";

(No Model.) 3 Sheetssheaf I.

m: honms PETERS no, moron-mo. ASHINGTON. n. c.

Patented Nov. 4, I902.

J. A. MULLEN 81. E. J. POPE. MACHINE FORTBEATING PAPER STOCK.

(Application filed Jan. 14, 1902 3 3 Sheets-Sheet 2.

(No Modl.)

mv'emkou/ jdzaardJ 0/76 Jam .1 Jlwlkm after/n @15 S c. me uoRFus PETERSco, PHOYQ-UTHQ. wAsnlNsromp Patented Nov. 4, I902.

J. A. MULLEN & E. J'. PUPE.

MACHINE FOR TREATING PAPER STOCK.

(Application filed Jan. 14, 1.902.) x

3 Sheets$heet a.

(No Model.)

ggqai ail.

Unrren STAT-es 'ATENT FFrc JAMES A. MULLEN AND EDWARD J. POPE, OFHOLYOKE, MASSACHUSETTS.

MACHENE FOR TREATING PAPER-STOCK.

srnorrroa'rrorr fol-mag part of Letters ram 1%. 712,837, dated November4, 1902. Application filed January 14, 1902. Serial No. 89,770. (Nomodel.)

T0 00% whom, it may concern:

Be it known that we, JAMES A. MULLEN and EDWARD J .POPE,citizens of theUnited States, residing at I-Iolyoke, in the county of Ham) den andState of Massachusetts,have inven ted certain new and usefulImprovements in Machines for Treating Paper-Stock; and we do herebydeclare the following to be a full,clear, and exact description of theinvention,such as will enable others skilled in the art to which itappertains to make and use the same.

Our invention relates to certain improvements in what may be termedmachines for grinding pulp, otherwise called beatingengines forpaper-stock.

It has for its object, among other things, to effectively disintegratethe stock or material, to increase the beating capacity, to promote thecirculation of the material to be operated on or treated, to economizepower for driving the beater or engine, and otherwise improve theutility and simplify the construction of the engine.

It consists of the combination and arrange ment of parts, includingtheir construction, substantially as hereinafter more fully disclosed,and specifically pointed out by the claim.

In the accompanying drawings, illustrating the preferred embodiment ofour invention, Figure 1 is a plan view. Fig. 2 is a longitudinal sectiontaken on the line 03 a; of Fig. 1. Fig. 3 is a longitudinal section ofthe heater or engine. Fig. 4 is a view showing a modification of thebeater or engine.

Latitude is allowed herein as to details, as they may be changed withoutdeparting from the spirit of our invention and the same yet remainintact and be protected.

In carrying out our invention we provide, as usual, a suitablereceptacle 1, sometimes called the tub, preferably oblong, with roundedor arcual ends. Within said receptacle or tub is provided what is termedthe backfall 2, occupying in cross-section about a half of theplancross-sectional area of said receptacle and extending longitudinallyparallel with the rectilinear lateral portion of said receptacle, saidbackfall having its maximum altitude near the rear of said receptacleand sloping or inclining therefrom gradually downwardly to and vanishingat a point near the forward end of said receptacle.

Said'backfall 2 is laterally divided off or separated from the otherportion of the chamber or interior of said receptacle or'tub 1 by meansof a vertical or upright partition 2, terminat ing at its ends at aboutpoints alining the corresponding portions of the backfall. A suitablyconstructed or provided bed piece or plate 3 is let into theforwardly-extended portion o'f the backfall 2, extending trans verselyof the last named its entire width.

Directly above or over the bed piece or plate 3 is arranged the heateror engine 4, having its central shaft 4 suitably journaled or hung inposition, and having one end projecting laterally beyond saidreceptacle, said projecting end portion having secured thereon a drivingor power pulley 5. Said heater or engine is cylindrical and armed orequipped with numerous fly-bars 6, preferably edgewise-disposed steel ormetal bars arranged at close intervals apart, with their inner endsfirmly secured upon the periphery of the beater or cylinder in any knownor suitable way. Said fly-bars have secured thereto circular lateralmembers or rings 6 to retain them against lateral displacement. Inbetween said fiy-bars are inserted wedges or blocks 6stoppinginwardlyfrom the plane touching the outer ends of said fiy-barsto effectively engage or act upon the paper stock or material interposedtherebetween, and the bed piece or plates 3 in disintegrating or com-.ininuting the same for its reduction into pulp.

Said blocks or wedges solidly wedge said flybars in place, and thusreinforce them against premature endwise displacement and wear, as wellas impart thereto the maximum efficiency.

' Said fiy-bars are in practice of an equal stoutness or thicknessthroughout their lengths, thus obviating the lessening of their effciency or strength as they wear away, as would otherwise be the case,especially if tapering or feathering.

Just in rear of the beater or engine 4 is arranged what we term apropeller or reel 7, with its shaft 7 suitably journaled or supported inplace and equipped with a pulley 7 suitably driven for the rotation oractuation of said propeller, the plane of movement or rotation of thelast named being indicated by the arrow. Said reel or propeller haspref- ICO erably a tubular or hub portion 7, through which passes and istightly fitted a shaft, and has a series of integral radial arms 7provided or equipped at their outer ends with preferably-integral broadplate-like portions or paddles 7". These paddles as the heater isactuated are adapted to engage and carry the stuff or material treatedby the beater or engine rearwardly away from said beater and up thebackfall 2, it thence falling over the last named, thus aiding thecirculation or carrying of the stuif or material to and for treatment bythe beater or engine, said stuff being moved or passed around throughthe receptacle or tub 1 from end to end between the beater or engine andthe bed-plate for effectual treatment. Said beater and propeller areinelosed above the receptacle by a housing 8, having preferably a doublearcnal up per surface, as shown, suitably secured to said receptacle.

In the modification,-as disclosed in Fig. 4:,we may arrange the fiy-barsin groups, with said groups spaced apart or separated by relativelythick portions or blocks 8, touching the periphery of the beater orcylinder 4 at their inner ends, and their outer ends arranged inwardlysome distance from the circle or plane bounding the outer ends of saidfly-bars. This arrangement permits the increased circulation of thestufi or material around the flybars and through the receptacle', &c.

Having thus described our invention, what we claim as new, and desire tosecure by Letters Patent, is

In apparatus of the characterdescribed, the combination of acontaining-receptacle having a suitable backfall with the bed let intothe forward extension thereof, a beater or engine suitably hung in saidreceptacle above said bed, and a propeller arranged between said beateror engine and the summit of said backfall, adapted to take thepaper-stock from said beater and raise it to and force it over the apexof said backfall, substantially as set forth.

In testimony whereof we afitix our signatures in presence of twowitnesses.

JAMES A. MULLEN. EDWARD J. POPE. \Vitnesses:

EDWIN L. MUNN, GEO. W. PARKER.

